Creator
- Marchant, F.1
- Marcolesco, Juan.1
- Mark A. Stephens Ltd. (Trinidad)1
- Mark, J.1
- Marken & Bielfeld, Inc. (Frederick, Md.)1
- Matthews, Kate, 1870-1956.1
- Mattingly & Bronston (Lexington, Ky.)1
- Mattingly, L. F.1
- Mayer, M. G.1
- Mayes Printing Co. (Louisville, Ky.)1
- McCarthy, J. D.1
- McClure, L. Van.1
- McCrum Drug Co., Inc.1
- McGregor Studio.1
- McIntyre, A. D., Major.1
- McNie, Alex.1
- Mellen Photo Co. (Chicago, Ill.)1
- Memphis Tobacco Co. (Memphis, Tenn.)1
- Meridan Gravure Company (Merdian, Conn.)1
- Metro-Goldwyn-Mayer.1